Headset



FIG. 1 is a bottom left perspective view of a headset in accordance with an embodiment of the claimed design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines depict portions of the claimed design that form no part of the claimed design. 

CLAIM The ornamental design for a headset, as shown and described. 